5 files changed, 29 insertions, 0 deletions
diff --git a/src/video_core/engines/fermi_2d.h b/src/video_core/engines/fermi_2d.h
index 2e51b7f13..45f59a4d9 100644
--- a/src/video_core/engines/fermi_2d.h
+++ b/src/video_core/engines/fermi_2d.h
@@ -21,6 +21,12 @@ class RasterizerInterface;
 
 namespace Tegra::Engines {
 
+/**
+ * This Engine is known as G80_2D. Documentation can be found in:
+ * https://github.com/envytools/envytools/blob/master/rnndb/graph/g80_2d.xml
+ * https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nv50/nv50_2d.xml.h
+ */
+
 #define FERMI2D_REG_INDEX(field_name)                                                              \
     (offsetof(Tegra::Engines::Fermi2D::Regs, field_name) / sizeof(u32))
 
diff --git a/src/video_core/engines/kepler_compute.h b/src/video_core/engines/kepler_compute.h
index ab2781b4b..50f318848 100644
--- a/src/video_core/engines/kepler_compute.h
+++ b/src/video_core/engines/kepler_compute.h
@@ -27,6 +27,12 @@ class RasterizerInterface;
 
 namespace Tegra::Engines {
 
+/**
+ * This Engine is known as GK104_Compute. Documentation can be found in:
+ * https://github.com/envytools/envytools/blob/master/rnndb/graph/gk104_compute.xml
+ * https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nvc0/nve4_compute.xml.h
+ */
+
 #define KEPLER_COMPUTE_REG_INDEX(field_name)                                                       \
     (offsetof(Tegra::Engines::KeplerCompute::Regs, field_name) / sizeof(u32))
 
diff --git a/src/video_core/engines/kepler_memory.h b/src/video_core/engines/kepler_memory.h
index c6b738eb9..473bff20a 100644
--- a/src/video_core/engines/kepler_memory.h
+++ b/src/video_core/engines/kepler_memory.h
@@ -23,6 +23,12 @@ class MemoryManager;
 
 namespace Tegra::Engines {
 
+/**
+ * This Engine is known as P2MF. Documentation can be found in:
+ * https://github.com/envytools/envytools/blob/master/rnndb/graph/gk104_p2mf.xml
+ * https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nvc0/nve4_p2mf.xml.h
+ */
+
 #define KEPLERMEMORY_REG_INDEX(field_name)                                                         \
     (offsetof(Tegra::Engines::KeplerMemory::Regs, field_name) / sizeof(u32))
 
diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h
index 47fe1f137..eae427412 100644
--- a/src/video_core/engines/maxwell_3d.h
+++ b/src/video_core/engines/maxwell_3d.h
@@ -33,6 +33,12 @@ class RasterizerInterface;
 
 namespace Tegra::Engines {
 
+/**
+ * This Engine is known as GF100_3D. Documentation can be found in:
+ * https://github.com/envytools/envytools/blob/master/rnndb/graph/gf100_3d.xml
+ * https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h
+ */
+
 #define MAXWELL3D_REG_INDEX(field_name)                                                            \
     (offsetof(Tegra::Engines::Maxwell3D::Regs, field_name) / sizeof(u32))
 
diff --git a/src/video_core/engines/maxwell_dma.h b/src/video_core/engines/maxwell_dma.h
index c6b649842..35b25e6b9 100644
--- a/src/video_core/engines/maxwell_dma.h
+++ b/src/video_core/engines/maxwell_dma.h
@@ -25,6 +25,11 @@ class RasterizerInterface;
 
 namespace Tegra::Engines {
 
+/**
+ * This Engine is known as GK104_Copy. Documentation can be found in:
+ * https://github.com/envytools/envytools/blob/master/rnndb/fifo/gk104_copy.xml
+ */
+
 class MaxwellDMA final {
 public:
     explicit MaxwellDMA(Core::System& system, VideoCore::RasterizerInterface& rasterizer,